San Juan Sea Temperature

(Today) 2021

26.4°C / 79.5°F

Current weather

24°C / 74°F
(few clouds)

Partly cloudy

Wind

5 mph

Humidity

69%

The measurements for the water temperature in San Juan, San Juan are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average water temp

Monthly average max / min water temperatures

The graph below shows the range of monthly San Juan water temperature derived from many years of historical sea surface temperature data.

San Juan average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in San Juan
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 25.4 24.9 25.4 25.5 26.4 27.1 27.4 28.2 28.5 28.2 28 27
Max °C 27.3 26.8 26.4 27.7 28 29.1 29.6 29.8 30.2 29.8 29 28.3
Min °F 78.4 77.5 78.1 78.8 80.2 81.6 82.2 83.4 83.9 83.4 82.8 81.1
Max °F 80.3 79.4 79.1 81 81.8 83.6 84.4 85 85.6 85 83.8 82.4

7 day tide forecast for San Juan

FriSatSunMonTueWedThu
  • Low 1:34am
    (-0.25m)
  • High 8:45am
    (1.59m)
  • Low 3:04pm
    (0.35m)
  • High 8:11pm
    (1.02m)
  • Low 2:27am
    (-0.21m)
  • High 9:24am
    (1.59m)
  • Low 3:40pm
    (0.27m)
  • High 9:09pm
    (1.15m)
  • Low 3:23am
    (-0.14m)
  • High 10:03am
    (1.53m)
  • Low 4:16pm
    (0.17m)
  • High 10:06pm
    (1.28m)
  • Low 4:20am
    (-0.05m)
  • High 10:42am
    (1.43m)
  • Low 4:54pm
    (0.06m)
  • High 11:05pm
    (1.40m)
  • Low 5:19am
    (0.06m)
  • High 11:22am
    (1.28m)
  • Low 5:33pm
    (-0.05m)
  • High 12:05am
    (1.49m)
  • Low 6:23am
    (0.17m)
  • High 12:03pm
    (1.13m)
  • Low 6:16pm
    (-0.14m)
  • High 1:06am
    (1.54m)
  • Low 7:30am
    (0.26m)
  • High 12:47pm
    (0.98m)
  • Low 7:04pm
    (-0.22m)
7 day tide times for San Juan

*These tide times are estimates based on the nearest port (San Juan, Puerto Rico) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.